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glacial periods

См. также в других словарях:

  • glacial relict — a relict isolated by events associated with one of the glacial periods when much of northern North America and Eurasia were ice covered and fishless …   Dictionary of ichthyology

  • glacial landform — ▪ geology Introduction  any product of flowing ice and meltwater. Such landforms are being produced today in glaciated areas, such as Greenland, Antarctica, and many of the world s higher mountain ranges. In addition, large expansions of present… …   Universalium

  • Glacial period — A glacial period is an interval of time within an ice age that is marked by colder temperatures and glacier advances. Interglacials, on the other hand, are periods of warmer climate within an ice age. The last glacial period ended about 10,000 to …   Wikipedia

  • glacial stage — ▪ geologic time       in geology, a cold episode during an ice age, or glacial period. An ice age (q.v.) is a portion of geologic time during which a much larger part of the Earth s surface was covered by glaciers than at present. The Pleistocene …   Universalium

  • glacial epoch — /gleɪʃəl ˈipɒk/ (say glayshuhl eepok) noun 1. any of the glaciations of past geological periods as in Australia during the Permian. 2. the glacial epoch, the geologically recent Pleistocene epoch, during which much of the Northern Hemisphere was… …  

  • Last glacial period — Last glacial redirects here. For the period of maximum glacier extent during this time, see Last Glacial Maximum. The last glacial period was the most recent glacial period within the current ice age occurring during the last years of the… …   Wikipedia

  • Saale Glacial Stage — ▪ geology       division of Pleistocene deposits and time in northern Europe (the Pleistocene Epoch began about 1,600,000 years ago and ended about 10,000 years ago). The Saale Glacial Stage followed the Holstein Interglacial Stage and preceded… …   Universalium

  • Post-glacial rebound — A model of present day mass change due to post glacial rebound and the reloading of the ocean basins with seawater. Blue and purple areas indicate rising due to the removal of the ice sheets. Yellow and red areas indicate falling as mantle… …   Wikipedia

  • Mindel Glacial Stage — ▪ geology       major division of Pleistocene time and deposits in Alpine Europe (the Pleistocene epoch began about 1,600,000 years ago and ended about 10,000 years ago). The Mindel Glacial Stage is part of the early geologic scheme (c. 1900)… …   Universalium

  • Big Rock (glacial erratic) — Big Rock Big Rock (also known as Okotoks Erratic) is a glacial erratic situated between the towns of Okotoks and Black Diamond, Alberta, Canada (18 kilometres south of Calgary). The 15,000 tonne (16,500 short ton) quartzite boulder is the world s …   Wikipedia

  • Riss Glacial Stage — ▪ geology       major division of Pleistocene time and deposits (1,600,000 to 10,000 years ago) in Alpine Europe. The Riss Glacial Stage, during which mountain glaciers descended from the highlands, followed the Mindel Riss Interglacial Stage and …   Universalium

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